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breast stoping
expl.
全面回采
;
全面采矿法
无支护采矿方法的一种形式,也称水平推进回采法,用于呈水平或倾斜不大的厚层矿床。和开挖巷道一样,在直立的工作面上钻凿水平或略微倾斜的炮孔并爆破,使工作面水平向前推进开采
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